Quiz 7-9

Question 1

how does inbreeding affect allele and genotypic frequencies

Answer 1

no affect on allele frequenices
genotype frequencies change (increase in homozygosity)

Question 2

what does it mean to say that an allele is fixed in a population

Answer 2

no genetic variation at that locus

Question 3

what does a GWAS do

Answer 3

identify genetic markers that are statistically associated with phenotypic differences among individuals

Question 4

what does a manhattan plot visualise

Answer 4

the strength of statistical support that each locus in the genome is associated with variation in the trait being studies

Question 5

what does it mean if broad sense heritability is zero

Answer 5

no genetic variance

Question 6

threshold traits

Answer 6

express themselves once a certain threshold is crossed
influenced by many genes and environmental factors, making them complex

Question 7

can a microsatellite locus contain more than 2 alleles

Answer 7

yes

Question 8

why are mitochondrial markers useful

Answer 8

polymorphic
haploid-not heterozygotes
show uniparentak inheritance
no recombination-evolve as independent lineages

Question 9

CNV

Answer 9

can only detect increases
can go undetected in dna sequencing

Question 10

genetic marker

Answer 10

feature of genome allowing us to differentiate betwene alleles